PURPOSE OF INTERFACE POD The 9000A-8051 Interface Pod interfaces any 9000 Series Micro System Troubleshooter to equipment using an 8051- or 8044-family microprocessor. The Micro System Troubleshooter (referred to hereafter as the Troubleshooter) is used to service printed circuit boards, instruments and systems that use a microprocessor. The 9000A-8051 Interface Pod (referred to as the Pod) adapts the general purpose architecture of the Troubleshooter to a specific architecture of the 8051 and 8044 microprocessor families. The Pod adapts such microprocessor-specific functions as pin layout, status/control functions, interrupt handling, timing, and memory and I/O addressing.